Ill be the one who disagrees with the header size being a kill all. Are they ideal? No. Will they work ok? Yes.

Ask Squeeze. He is clickin off 10.60s with manifolds....

IDK what his cam profile is...but I assure you it is not close to a MP 528...

Ill bet its in the high 260s. Its all in the LSA with less than ideal exhaust (well that and who spec'd the grind)...Over 500 inches IIRC.


72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72. Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.